Sen. John Kerry wants his Republican ally John McCain to replace Defense Secretary Donald Rumsfeld. "If America has reached a point where only one person has the ability in our great democracy to manage the Pentagon and to continue or to put in place a better policy even, we're in deeper trouble than you think," Kerry told broadcaster Don Imus today. "I don't accept that. I just don't accept that. I think that's an excuse. The fact is that we need a change in policy." Asked who he'd pick as a replacement, the presidential candidate first named Sen. McCain. Then...